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allsm [11]
3 years ago
9

Evaluate-3x* +4x - 2 for x = 2. A 2 B -1 D. 18

Mathematics
1 answer:
fomenos3 years ago
8 0
A we do be cheating doe but the answer is a because i did the test
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What are the angle relationship(s) that must be formed around a single intersection
Sergeu [11.5K]

Answer:

Step-by-step explanation:

Opposite (or in The US, vertical) angles are congruent.

Adjacent ( on the same line) angles are supplementary (that is their sum = 180 degrees).

4 0
3 years ago
Halle la ecuación del eje x y la ecuación del eje y, usando dos puntos que se encuentren sobre los mismos.
lisov135 [29]

Una linea recta ( cualquier eje coordenado es una línea recta) queda definida si se conocen dos puntos que están sobre ella.

Solución:

Ecuación del eje x      y = 0

Ecuación del eje y      x = 0

Para darle respuesta a la pregunta podemos seguir el siguiente procedimiento:

  • Escogemos dos puntos arbitrarios sobre el eje x, por ejemplo

P ( 2 ; 0 )  y Q ( 5 ; 0 )         ( todos los puntos sobre el eje x tienen coordenada y = 0.

Según la cual  m = (y₂ - y₁)/ ( x₂ - x₁ )    m = 0

  • Usamos la ecuación pendiente-Intercepto

y = m×x + b         donde m es la pendiente y b el intercepto con el eje y

y entonces tenemos:

  • m = 0    b ( 0 ; 0 )
  • Por sustitución en la ecuación pendiente-intercepto

y = 0

Procediendo de forma similar obtendremos la ecuación del eje y

P´( 0 ; 4 )     Q´( 0 : 8 ) entonces

y = m×x + b

En este caso, la pendiente no es definida ( tang 90° ) y b es de nuevo el punto b ( 0 ; 0).

A partir de  que todos y cada uno de los puntos sobre el eje y son  de valor 0 para x, concluímos que  ecuación del eje y es

x = 0

Enlaces de interés:brainly.com/question/21135669?

8 0
2 years ago
A Rope 25 feet long is cut into 3 pieces. The first piece is 2x feet long, the second piece is 5x feet long, and the third piece
Korolek [52]

Answer:

'\/(-_-)\/'

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Select all that apply. A direct variation equation is graphed. The point (6, 4) is on the graph. Which of the following points a
sergejj [24]

Answer:

(3,2)

(-9,-6)

Step-by-step explanation:

Given that the graph is a direct variation.

The equation of variation is:

x=ky

Since point (6, 4) is on the graph

6=4k\\\\k=\dfrac64

Therefore, the equation connecting x and y is:

x=\dfrac64y

\text{When y=2},x=\dfrac64 \times 2 =3\\\\\text{When y =}-6,x=\dfrac64 \times -6 =-9\\\\\text{When y =}8,x=\dfrac64 \times 8 =12\\\\\text{When y =}-3,x=\dfrac64 \times -3 =-4.5

Therefore, the points that are also on the graph are:

(3,2) and  (-9,-6)

7 0
3 years ago
What is the quotient<br> when dividing 16 by 4/5<br>​
PolarNik [594]

Answer:

20

Step-by-step explanation:

5 0
3 years ago
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